Sound board for pianos



July 5,1921. 1,634,669

G. HyJONES soUND BOARD FOR PIANos Filed sept. 30. 1922 wenn 1.5.1921 N1,634,669

UNITED STATES PATENT` OFFICE.

GEORGE H. JONES, OF OREGON, ILLINOIS.

SOUND BOARD FOR PIANOS. v

` Application led September 30, 1922. Serial No. 591,619.

My invention relates to improvements in interior thereof in opencon'iinuuication with sound boards for pianos yand has kfor its the boreor' the corresponding tube 13. object the provision ot' an improvedpiano By this arrangement the tone or quality ot' 55 construction bymeans ot' which the tone or the tone of the piano Will be greatlyamplithe quality of the tone thereof is greatly lied and renderedresonant and thus 'greatly improved and the vresonance thereofinimproved in quality and musical eli'ect. creased. Vhile I haveillustrated and described Other objects Will appear hereinafter. thepreferred 'forni of construction for car- 60 The invention consists inthe combinarying` my invention into effect, this is cations andarrangements ot' parts hereinafter pable ol' variation and modificationWithout described and claimed. departing from the spirit of theinvention. The invention will be best understood by I, therefore, do notWish to be limited to the reference to the accompanying drawings precisedetails or' construction set forth, buter) forming a part of thisspecification,y and in desire to avail inyselif of such variations andwhich, modilications as come Within the scope of F ig. l, is a rea-rview of a piano embodythe appended claims. ing the invention, and Havingdescribed niy invention, what l F ig. 2, -is a. partial section taken online claim as nen7 and desire to secure by Letters 70 2 2 of Fig. l.Patent is:

` The preferred form of construction as l. The combination with anupright piano illustrated in the drawings comprises an having a soundboard and a vertical post ordinary upright piano body or casing 3,traversing the back thereof adjacent the back with the usual sound board4 and having of the sound board, of a hollow sound body 75 the usualtreble bridge 5 and bass bridge Wider than and forming part oi saidpost;

o 6, mounted thoroon in tho usual way to Supand a sound tube secured toand having one port the strings thereof in the usual Way. end closed bysaid sound board, the other end The sound board 4 is provided with theusual Ot' Said tube being secured to and opening ribs 7 on its back andtheusual vertical into said Sound body, substantially as de so posts 8and 9 provided at the rear thereotl scribed. 80 as shown. So much of theconstruction is 2. The combination with a piano having old andwell knownand a usual one for the' 21 Sound beard, of a hollow sound body purposeand Constitutes n0 part 0f my preg- HlOlnGd adjaCeDt Sald bOLld; and il.Sound ent invention excepting so faias the saine tube having one endsecured to and closed 85 is combined and cooperates With the'novel byStud Sound board, the other end being features of consti-notion to bopresently dosecured to and opening into the said sound scribed. body,substantially as described.

In place of the usual vertical posts at the The combination with anupright piano rear 0f the piano Iy provide two Speoially having' a Soundboard, a treble bridge and 90 constructed posts l() and l1, eachconsisting a vertical post incorporated into the back 40 ofa solid posthaving incorporated therein thereof, said post being solid through theand made a part thereof, ra hollow violin major portion. of its lengthbut having a body 12 of Wood, ,asfshown Each violin hollow sound bodyWider than and forming body 12 is connected with the adjacent sound apart or said post; o'l: a sound tube having 05 board 4 by means of afWooden tube or am a divergent bore secured at the smaller end plifyinghorn 13,y each tube 13 being secured 0l1 its bore to said sound boardopposite said to and closed by the sound board opposite treble bridge,the sound board closing the tho treble bridge 5 and being also securedto end of the tube7 the other end of. said tube and opening into thecorresponding violin being secured to and opening into said sound 100body 12. Each tube is provided with a bore bOCly, Substantially asdescribed.

14diverging from thesound board 4 to the 111 QSL'III'lOlly Wilt/T991: lhave Signed my corresponding violin body l2 and an opening Dam@ t0 thisSPQClCfltl-On- 15 is provided in the body 12 to place the GEORGE H.JONES.

